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Haikou Weather Alert: Heavy Rainfall Forecast

October 4, 2026 · wweather1 editorial · 1 min read

Haikou is experiencing heavy rainfall as precipitation levels cross the established weather threshold.

According to forecast data from wweather1.com, Haikou has recorded significant precipitation. The measured rainfall value has reached 31.4 millimeters, crossing the 30-millimeter threshold set for high severity alerts.

The automatic weather monitoring system registered these conditions starting on October 5, 2026. The high volume of rain is expected to impact the local area in China.

Residents and travelers in Haikou should monitor ongoing weather updates as the conditions persist. The automatic alert system continues to track the precipitation metrics for the region.

Why it is dangerous and what to do

⚠️ Safety
• Monitor local weather updates and official advisories.
• Exercise caution while traveling on wet roads.
• Ensure proper drainage around residential properties.
📊 The numbers, from wweather1 data
Haikou: now +24°, Thunderstorm.
That is 1° above the October climate norm.
The record for this date is +32° (2023).
Three-day forecast: 4 October: +34°/+25° · 5 October: +28°/+23° · 6 October: +27°/+25°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates.

🌍 Weather in nearby cities

📰 Data source: wweather1. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.

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